Large Murano Glass Ceiling Light Bubbles in Murano Glass, 1970s, in Flawless conditions. Designed 1970 to 1979 This piece has an attribution mark, I am sure that it is completely authentic and take full responsibility for any authenticity issues arising from misattribution, Up to 250V (Europe/UK Standard).The wiring of this item may be original and might need replacement, if not specified otherwise.